Combination-gage



W. SALT.

COMBINATION GAGE.

APPLICATION FILED DEC. 7. 1918.

1,341,481 Patented May 25, 1920.

Qwwewtoz UNlTED STATEfi @QFFIQE.

WELLINGTON SALT, 0F BUFFALO, NEW YORK.

COMBINATION -GAGE.

To all whom it may concern:

.Be it known that I, lVnLLiNcToN SALT, a citizen of the United States,residing at Buffalo, in the county of Erie and State of New York, haveinvented new and useful Improvements in Combination-Gages, of which thefollowing is a specification.

This invention has reference generally to improvements in measuringinstruments and more particularly relates to a combination gage.

It is the principal aim and object of the present invention to provide adevice of the above mentioned character designed to be used in thenature of a butt gage while the parts are so constructed and related toeach other that the relation of the same may be easily and quicklychanged to permit of the use of the device as a mortising gage.

More particularly the present inventlon contemplates the provision of adevice of the above mentioned character wherein there is employed a bodydesigned for adjustably accommodating marking screws which are capableof being readily locked in a predetermined adjusted position so as topermit of the accurate use of the device.

It is an additional object of this invention to provide a device of theabove mentioned character which is simple in construction, thoroughlyreliable and eflicient in its purpose and inexpensive in manufacture.

Other objects will be in part obvious and in part hereinafter set forth.

The invention accordingly consists in the features of construction, thecombination of elements and the arrangement of parts which will beamplified in the construction hereinafter described and the scope of theapplication of which will be indicated in the appended claim.

The invention is clearly illustrated in the accompanying drawings, inwhich:

Figure 1 is a perspective view of the invention with the parts assembledfor use as a butt gage.

Fig. 2 is a perspective view of the dev ce with the parts arranged foruse as a mortising gage.

Fig. 3 is a longitudinal sectional detail view through the body.

Fig. 4 is a transverse sectional detall view through the body, and

Fig. 5 is a perspective detail of the modified form of the invention.

Specification of Letters Patent.

Patented May 25, 1920.

Application filed December 7, 1918. Serial No. 265,731.

Similar characters of reference are employed in all of the abovedescribed views, to indicate corresponding parts.

lteferring now, more particularly, to the accompanying drawings there isprovided a substantially rectangular body 1 formed of suitable materialsuch as aluminum and recessed on its under face to provide a guide orshoulder 2 along one side edge thereof. The body is also provided withspaced transversely extending threaded bores 3 and a one end of thelatter of which is counter-sunk as at 5 for a purpose that willpresently appear while the body is also formed at the respective endswith inwardly extending slits 6 which communicate with the adjacentbores. The upper surface of the body 'is cut away between the two boresto provide a finger or thumb receiving recess '7 while the upper surfacenear the respective ends is slightly re duced forming substantialresilient portions 8. Screw bars 9 and 10 are now employed and areformed with heads 11 beveled between their outer surfaces as at 12providing substantial cutting edges 13 while the outer faces of theheads are slightly concaved as at l l to facilitate sharpening thereof.The screw 9 is longer than the screw 10 and these screw bars arerespectively mounted in the bores 3 and 4.

In order to lock the screw bars 9 and 10 in various positions ofadjustment the body is provided near the respective ends and through theresilient portions 8 with vertically arranged and threaded apertures 15in which are mounted set or lock screws 16 designed for clamping theresilient portions 8, formed near the upper surface and the reduced endsof the body, against the lower portions of the body immediately beneaththe said resilient portions as illustrated, this action causing arestriction on the size of the bores so as to create a frictionalengagement with the screws to prevent accidental movemerit thereof.

In Fig. 5 there is shown a slightly modified form of the invention andinstead of constructing the body "relatively straight the same is formedin front elevation of a substantial V-shape, the idea being to raise thelong marking screw over the thick door casing when using the shortmarker for indicating the thickness of the hinge as will be apparent.

In the use of the preferredembodiment of the invention as a butt gage asillustrated in Fig. 1 particularly the marker or screw bar 9 is adjustedso that the proper distance or space is obtained between the shoulder 2and the cutting edge 13 of the head thereof whereupon the adjacent lockscrew 16 is tightened. The body isnow applied to one edge of the doorfor instance so that the shoulder engages the edge and with the thumb inthe recess 7 the body is moved along the edge of the door so that thecutting edge will mark the door. When using the device as a butt gagethe elongated marking screw bar 9 is now changed; that is, it is removedfrom one end of the bore and inserted in the opposite end so as toposition the head on the same side of the body as the head of the shortscrew bar. The screw bars are now adjusted, the counter-sink 5permitting of the head 11 of the screw bar being partially receivedtherein so as to permit of the marking of the work very close to theedge thereof. The lock screws 16 are, of course, tightened so as tomaintain the screw bars in the proper position of adjustment whereuponthe body is arranged against the work, the outer edge of the shoulder orguide contacting with one edge of the work while the cutting disks arearranged in properly spaced relation on the adjacent side of the work sothat spaced marks will be made upon the work upon the sliding of thebody, as is apparent.

It is believed in View of the foregoing description that a furtherdetailed description of the operation of the invention is entirelyunnecessary. Likewise it is believed that mounted in the respective endsof the body for adjusting the resilient portions to restrict the size ofthe bores and thereby clamp the bars against accidental movement.

In testimony whereof I aflix my signature.

WVELLINGTON SALT.

